Implement for stopping pneumatic-tired vehicles.



0. LE DUO.

IMPLEMENT FOR STOPPING PNEUMATIC TIRED VEHICLES.

APPLICATION FILED JUNE 4, 1913.

1,094,226. I Patented Apr. 21, 1914.

aafldiaiti COLUMBIA PLANOGRAPH C0., WASHINGTON, D. C.

CONSTANT LE DUC, OF CHATSWORTH, NEW JERSEY.

IMPLEMENT FOR STOPPING PNEUMATIC-TIRED VEHICLES.

Specification of Letters Patent.

Patented Apr. 21, 1914:.

Application filed June 4, 1913. Serial No. 771,741.

To all whom it may concern 3 Be it known that I, CONSTANT LE DUO, acitizen of the United States, residing at Ghatsworth, in the county ofBurlington and State of New Jersey, have invented new and usefulImprovements in Implements for Stopping Pneumatic Tired Vehicles, ofwhich the following is a specification.

Operators of automobiles and kindred vehicles frequently violate traflicregulations, and it becomes the duty of an officer, or other personvested with authority, to prevent such infractions of the law to bringthe operators of the machines to account and this entails a stopping ofthe machine or vehicle. It not unfrequently happens that the operatorwill not heed a command to stop, but on the contrary makes an elfort toget away by increasing the speed of the machine.

The purpose of this invention is the provision of an implement which maybe thrown in the path of the automobile or vehicle to puncture the tireand thereby compel the operator to bring the machine to a standstill.

The invention consists of a bar comprising telescoping sections, eachprovided in its length with rows of teeth or spurs, some of which willalways project vertically so as to penetrate the tire and causedeflation thereof, such spurs or teeth being closely related andsharpened to insure the penetration of the tire to cause escape of theair therefrom, the inner section having its inner end enlarged, and bothsections having handles at their outer ends and limited in their outwardmovement by means of a flexible connection.

The invention consists of the novel features, details of constructionand combination of parts, which hereinafter will be more particularlyset forth, illustrated in the accompanying drawing, and pointed out inthe appended claim.

Referring to the drawing, forming a part of the specification, Figures 1and 2 are respectively an elevation and a longitudinal section of animplement embodying the invention. Fig. 3 is a longitudinal section ofthe implement having the parts telescoped. Figs. 4- and 5 are enlargedsections on the lines 4-4 and 5 5 respectively of Figs. 2 and 3. Fig. 6is a detail view of part of the sheet metal blank from which each of theparts of the implement is formed.

Corresponding and like parts are referred to in the followingdescription, and indicated in all the views of the drawing, by the samereference characters.

The implement consists of a bar which may be of any length and of anycross sectional outline, said bar being provided in its length with rowsof spurs or teeth, which are closely related and of such a length as topenetrate a pneumatic tire and cause deflation thereof. While the barmay be of any outline in cross section it is preferred to have the sameof such configuration that when thrown upon the roadway some one of therows of spurs 0r teeth will project vertically so as to penetrate andpuncture the tire of the vehicle passing thereover. The form bestadapted for the purpose is shown in Figs. 4L and 5 and is triangular,the sides being concave to give greater prominence to the spurs orteeth. As shown most clearly in Figs. 4 and 5 two rows of the spurs orteeth engage the surface of the roadway, with the result that the thirdrow of spurs or teeth will occupy a vertical position soas to penetrateand puncture the tire passing t'hereover. Handles are located at theends of the bar for convenience of manipulation and to prevent injury tothe hand of the ofiicer or other person supplied with the implement.

In the preferable construction the bar comprises telescoping parts 6 and7 each being of similar formation and constructed of a sheet metal blank8 which is bent intermediate of its longitudinal edges into triangularform with the edge portions overlapping and secured by means of rivet-s8 or like fastenings. Each of the parts is provided at its outer endwith a handle 9, the two handles being connected by means of a chain 10which limits the outward movement of the parts. The inner end of thepart 7 is enlarged as indicated at 11 to snugly fit .within the part 6to hold the parts in alinement when extended. V-shaped portions arepartly cut from the blanks 8 and are pressed outwardly to form teeth 12,said teeth being in a line with the angles formed between adjacent sidesof the parts. When the parts are telescoped as indicated in Fig. 3 thelength of the implement is materially re duced. Vhen the parts areextended the implement is lengthened to such an extent as to insure aportion coming in the path of a wheel of the .vehicle when the implementis thrown in advance of the machine to puncture a tire thereof.

When an officer or other person invested with authority commands theoperator of an automobile to bring his machine to a stop because of aninfraction of a regulation or law and such operator endeavors to getaway by speeding the machine the ofiicer throws the implement upon theroadway in position to insure the passage of one of the wheelsthereo-ver and such wheel in its passage has its tire punctured, therebycausing deflation and compelling the operator to bring the machine to astandstill when the officer may apprehend the operator in the usualmanner.

Having thus described the invention what is claimed as new, is

An implement of the character described comprising telescoping parts ofsimilar formation, each having rows of outwardly extending teeth. andthe inner part having its inner end enlarged, handles at the outer endsof the parts and a flexible connection joining the handles and limitingthe outward movement of the parts.

In testimony whereof I aflix my signature in presence of two witnesses.

CONSTANT LE DUC.

\Vitnesses NORMAN J. SMITH, SELTNA DEACON.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

Washington, D. G.

